North Carolina VIPER General Information

Introduction

VIPER stands for Voice Interoperability Plan for Emergency Responders

General Information

VIPER stands for "Voice Interoperability Plan for Emergency Responders".

VIPER is divided into 3 "Zones" (or RFSS):

Zone 1 is the piedmont area (including central NC)

Zone 2 is the western part of the state

Zone 3 is the eastern part of the state.

Here is a map created by RR member Daniel (FD5722) showing the location of the 3 Zones/RFSS:

The NC Department of Public Safety has a website devoted to VIPER at the following link:

https://www.ncdps.gov/our-organization/law-enforcement/viper

A great blog devoted to VIPER can be found at the following link (Link no longer works):

http://ncviper800.blogspot.com/

VIPER will be transitioning into system-wide P25 Phase-2 from Phase-1 by mid-2025. Mostly all Sites are already Phase-2 compatible.

VIPER Background

VIPER is managed by the North Carolina State Highway Patrol and has numerous agencies participating in this system.

VIPER Discussions On RadioReference.com

• Archived 2005-2008 VIPER Discussion Thread
• Archived 2008-2011 VIPER Discussion Thread
• Current VIPER Discussion

   * Alamance D-5
   * Alexander F-5
   * Alleghany
   * Anson H-3
   * Ashe F-2
   * Avery
   * Beaufort
   * Bertie
   * Bladen
   * Brunswick
   * Buncombe
   * Burke
   * Cabarrus
   * Caldwell
   * Camden
   * Carteret
   * Caswell
   * Catawba
   * Chatham
   * Cherokee
   * Chowan
   * Clay
   * Cleveland
   * Columbus
   * Craven
   * Cumberland
   * Currituck
   * Dare
   * Davidson
   * Davie
   * Duplin
   * Durham
   * Edgecombe
   * Forsyth
   * Franklin
   * Gaston
   * Gates
   * Graham
   * Granville
   * Greene
   * Guilford
   * Halifax
   * Harnett
   * Haywood
   * Henderson
   * Hertford
   * Hoke
   * Hyde
   * Iredell
   * Jackson
   * Johnston
   * Jones
   * Lee
   * Lenoir
   * Lincoln
   * Macon
   * Madison County
   * McDowell
   * Mecklenburg County
   * Mitchell
   * Montgomery
   * Moore
   * Nash
   * New Hanover
   * Northampton
   * Onslow
   * Orange
   * Pender
   * Person
   * Pitt
   * Polk
   * Randolph
   * Robeson
   * Rockingham
   * Rowan
   * Rutherford
   * Sampson
   * Stanly
   * Stokes
   * Surry
   * Swain
   * Transylvania
   * Tyrrell
   * Union
   * Vance
   * Wake
   * Warren
   * Washington
   * Watauga
   * Wayne
   * Wilkes
   * Wilson
   * Yadkin
   * Yancey

Related Pages

• North Carolina VIPER Counties Verified

Return to Wiki page: North Carolina VIPER (P25), North Carolina VIPER (Type II)